diff --git a/media/themes/Lunar/lunar.msstyles/lang/cs-CZ.rc b/media/themes/Lunar/lunar.msstyles/lang/cs-CZ.rc
new file mode 100644
index 00000000000..35da196e5df
--- /dev/null
+++ b/media/themes/Lunar/lunar.msstyles/lang/cs-CZ.rc
@@ -0,0 +1,38 @@
+LANGUAGE LANG_CZECH, SUBLANG_DEFAULT
+
+STRINGTABLE
+{
+1000, "ReactOS"
+}
+
+STRINGTABLE
+{
+2000, "Lunar ReactOS"
+}
+
+STRINGTABLE
+{
+3000, "Normální"
+3001, "Velké písmo"
+3002, "Velmi velké písmo"
+}
+
+STRINGTABLE
+{
+4000, "Normální"
+4001, "Velké písmo"
+4002, "Velmi velké písmo"
+}
+
+STRINGTABLE
+{
+5000, "Lunar"
+5001, "Vizuální styl"
+5002, "ReactOS Foundation"
+5003, "Cernodile & Illen, založeno na stylu Lautus"
+5004, "Vydáno pod licencí GNU/GPL 2.0, 2019"
+5005, "https://reactos.org/"
+5006, "1.1"
+5007, "Vizuální styl pro ReactOS"
+}
+
diff --git a/media/themes/Mizu/mizu.msstyles/lang/cs-CZ.rc b/media/themes/Mizu/mizu.msstyles/lang/cs-CZ.rc
index ba18079b911..acc682ce566 100644
--- a/media/themes/Mizu/mizu.msstyles/lang/cs-CZ.rc
+++ b/media/themes/Mizu/mizu.msstyles/lang/cs-CZ.rc
@@ -2,12 +2,12 @@ LANGUAGE LANG_CZECH, SUBLANG_DEFAULT
 
 STRINGTABLE
 {
-1000, "Light"
+1000, "Světlé"
 }
 
 STRINGTABLE
 {
-2000, "Mizu Light"
+2000, "Mizu světlé"
 }
 
 STRINGTABLE
@@ -34,4 +34,4 @@ STRINGTABLE
 5005, "https://reactos.org/"
 5006, "1.0"
 5007, "Motiv pro ReactOS"
-}
\ No newline at end of file
+}
diff --git a/media/themes/Modern/modern.msstyles/lang/cs-CZ.rc b/media/themes/Modern/modern.msstyles/lang/cs-CZ.rc
index 0d5b421b2a1..88202fcd0a3 100644
--- a/media/themes/Modern/modern.msstyles/lang/cs-CZ.rc
+++ b/media/themes/Modern/modern.msstyles/lang/cs-CZ.rc
@@ -2,14 +2,14 @@ LANGUAGE LANG_CZECH, SUBLANG_DEFAULT
 
 STRINGTABLE
 {
-1000, "Jasný"
-1001, "Temný"
+1000, "Světlé"
+1001, "Tmavé"
 }
 
 STRINGTABLE
 {
-2000, "Modern Jasný"
-2001, "Modern Temný"
+2000, "Modern světlé"
+2001, "Modern tmavé"
 }
 
 STRINGTABLE